krueger-



Patented ma 23, I399. T. F. nurses. I

smK TRAP.

(Application filed-8&7 24, 1898.)

(No Model.)

NiTED STATES PATENT OFFICE.

THEODORE F. KRUEGER, OF NET/V YORK, Y.

SINK-TRAP.

SPECIFICATION forming part of Letters Patent No. 625,339, dated May 23, 1899.

Application filed May 24, 1898.

To all whom, it may concern:

Beit known that I, THEODORE F. KRUEGER, a citizen of the United States, residing at New York, in the borough of Manhattan and State of New York, have invented certain new and useful Improvements in Sink-Traps, of which the following is a specification.

This invention relates to an improved trap for sinks, washstands, bath-tubs, and other fixtures of a like character by which the automatic sealing of the drain-pipe against the ingress of sewer-gas is produced in an effective and reliable manner and which is opened under hydrostatic pressure when the liquid is to be drained from the sink, washstand, &c.

The invention consists of a sink-trap which comprises a drain-pipe, hinged pipe-sections jointed to said drain-pipe, a receptacle jointed to said pipe-sections, means for counterbalancing the same, and a stop cock in the lower section of the drainpipe, operated by the counterbalanced reoeptacle,so as to be opened for discharge and to be closed after the discharge of liquid.

In the accompanying drawings, Figure 1 represents a side elevation of my improved sink-trap shown in closed position; and Fig. 2 is a side elevation, partly in vertical section, showing the parts in position for discharging the liquid from the sink, washstand, 850.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents a sink, washstand, bath-tub, or other fixture, to the under side of which is applied the drainpipe B. Instead of providing the drain-pipe with the usual S-shaped or other trap, which is objectionable for various reasons, the drainpipe is made in two parts, one, B, vertically below the other, B, and intermediately between the same is interposed a receptacle 0, preferably of cylindrical shape, which is connected at its upper and lower ends by hinged pipe-sections D D with the sections B B of the drain-pipe. The weight of the receptacle 0 and the hinged pipe-sections D Dis counterbalanced by a weighted lever E, which is fulcrumed to the upper section B of the drainpipe and connected by a chain 6 with the upper jointed pipe-section D or with the receptacle O, as desired. The weight E can be Serial No. 681,590. on model.)

shifted on the arm of the counterbalancinglever E, so as to produce the proper counterbalanoing of the receptacle and hinged pipesections D D.

The hinge-joint between the lower pipesections D and the lower section B of the drain-pipe is made in the form of a stop-cock f, that turns in a sleeve B fixed to the upper end of said section B. The cock f is closed when the receptacle is in the raised position and under the influence of the counterbalancing-weight E, as shown in Fig. 1, or it is opened when the liquid drawn off from the sink, 850., fills the receptacle sufficiently, so as to overcome the counterbalancing-weight E. When the receptacle 0 arrives at its lowermost point, as shown in Fig. 2, the fulcrumed lever E abuts against the bottom of the sink A. is entirely opened, so that the liquid drained off into the receptacle (1 can easily pass off through the lower section B of the drainpipe. As soon as the liquid has flowed off the action of the weight raises the receptacle 0 and the pipe-sections D D into upper po sition, as shown in Fig. 1, in which position the stop-cock f is closed. The closing of the stop-cock f when the trap is in raised or normal position prevents the escape of sewergases through the drain-pipe of the same in a very effective and reliable manner. The alternating play of the trap due to the draining off of any of the liquid and to the action of the counterbalancing-weight produces the free draining and the closing of the stop-cock when the liquid has been drawn oif.

It is obvious that in place of the counterbalancing-weight a spring may be employed, so as to return the trap into its normal raised position.

Having thus described my invention, what I claim is- A trap for-sinks, washstands, &c., consisting of two fixed sections of drain-pipe, one of which is connected with the sink or basin and the other of which is provided-with a fixed sleeve at its upper end, a liquid-receptacle, hinged pipe-sections connecting the said re ceptacle with the said sections of the drain pipe, a stop-cock carried and operated by the lower hinged section, said cock turning in In this position the stop-cock f said sleeve and being provided with a passage adapted when the receiver is raised to close the outlet through the lower section of the drain-pipe and when it is lowered to establish communication with the same, and a connterhalancing device for said receptacle, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

- THEO. F. KRUEGER.

Witnesses:

PAUL GOEPEL, GEO. W. JAEKEL. 

